Patents Examined by Kelechi Egwim
  • Patent number: 8501851
    Abstract: The present invention relates to a pre-accelerated resin composition comprising an unsaturated polyester resin and/or a vinyl ester resin, wherein the composition further comprises a. a copper salt, and b. a compound according to formula (1) in which R can be selected from H, optionally substituted C1-C20 alkyl, optionally substituted C6-C20 aryl, and wherein the copper is present in an amount of more than 0.1 mmol/kg resin.
    Type: Grant
    Filed: March 3, 2008
    Date of Patent: August 6, 2013
    Assignee: DSM IP Assets B.V.
    Inventors: Johan Franz Gradus Antonius Jansen, Ronald Ivo Kraeger
  • Patent number: 8497315
    Abstract: The present invention pertains to a process for the preparation of aqueous dispersions which are stabilized with a water-insoluble stabilizing colloid, characterized in that a) in a first step a water-insoluble stabilizing colloid is prepared, with this being prepared, based on the amount of monomer used for the preparation of the stabilizing colloid, by means of radical polymerization, followed by b) the addition of at least one further olefinically unsaturated monomer and at least one initiator, in which process by means of radical polymerization of the further olefinically unsaturated monomer an aqueous dispersion is obtained, on which c) optionally a residual monomer reduction is performed, with this being carried out by means of polymerization of residual monomers and/or by means of physical removal of the residual monomers and optionally further volatile organic components by means of the introduction of vapor and/or gas.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: July 30, 2013
    Assignee: Akzo Nobel N.V.
    Inventors: Hongli Willimann, Jakob Wolfisberg, Ulf Kehrer
  • Patent number: 8492511
    Abstract: The invention relates to a process for the preparation of crosslinked polymers bearing nitroxide groups, which are prepared by a method frequently called atom transfer radical addition polymerization (ATRA). A further aspect of the invention is the use of such polymeric crosslinked nitroxides as stabilizers for polymers against the detrimental influences of heat and UV light, as stabilizers against premature polymerization of vinyl aromatic monomers and as active electrode materials in secondary batteries.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: July 23, 2013
    Assignee: Piotrek Co., Ltd.
    Inventors: Peter Nesvadba, Lucienne Bugnon
  • Patent number: 8492465
    Abstract: The present technology generally relates to emulsion polymer latexes, particularly those used in pressure sensitive adhesives, paints and coatings. Surfactant compositions of the present technology for use in forming at least one emulsion polymer latex comprise at least one branched surfactant, at least one sterically bulky surfactant, or a mixture of branched and sterically bulky surfactants. One preferred surfactant composition comprises at least one alkoxylated polyaryl substituted aromatic compound or at least one alkoxylated polyalkyl substituted aromatic compound. Another preferred surfactant composition comprises a mixture of at least one branched-alkyl sulfate and at least one ethoxylated polystyrylphenol. Another preferred surfactant composition comprises at least one sulfated polystyrylphenol.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: July 23, 2013
    Assignee: Stepan Company
    Inventors: Jean M. Seibold, John C. Hutchinson, Gary R. Luebke, Robert A. Krueger, Jungsik Lee
  • Patent number: 8487060
    Abstract: Provided is a polychloroprene latex extremely favorable in adhesive properties. The present invention relates to a method of producing a polychloroprene latex, comprising polymerizing chloroprene or a mixture of chloroprene and a monomer copolymerizable with chloroprene in an aqueous medium containing a surfactant at a concentration of lower than its critical micelle concentration (CMC) and a polymer dispersant of a metal salt of aromatic sulfonic acid formalin condensate added thereto. The polymer dispersant for use is preferably a metal salt of aromatic sulfonic acid formalin condensate. The polychloroprene latex obtained can be used as an adhesive.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: July 16, 2013
    Assignees: Denki Kagaku Kogyo Kabushiki Kaisha, Tohoku University
    Inventors: Naoki Kobayashi, Mikio Konno, Daisuke Nagao, Yoshihiro Mashiko, Toshiaki Otsu
  • Patent number: 8465846
    Abstract: The present invention provides aqueous dispersions that, for example, include the reaction product of an oxirane-functional vinyl addition polymer having an oxirane functionality between 0.5 and 5; an acid-functional polymer having an acid number 30 to 500; and a tertiary amine. Also described are coating compositions containing the dispersion and methods of forming the dispersion.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: June 18, 2013
    Assignee: Valspar Sourcing, Inc.
    Inventors: Robert M. O'Brien, Grant Schutte, Jeffrey Niederst, John W. Condit, Dawn S. Herko, Daniel E. Rardon
  • Patent number: 8461260
    Abstract: Impact-modified polycarbonate compositions are disclosed that comprise a first graft polymer based on silicone-acrylate composite rubber as graft base, wherein the amount of silicone rubber is from 65 to 95 wt. % (based on the graft base), and a second graft polymer containing free copolymer, that is to say copolymer that is not chemically bonded to the rubber, and having a weight-average molecular weight of from 60,000 to 150,000 g/mol. The use of the polycarbonate compositions in the production of molded articles, and to the molded articles themselves are also disclosed. The compositions and molding compositions have an optimum combination of good elongation at tear, good hydrolytic stability and low melt viscosity.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: June 11, 2013
    Assignee: Bayer Intellectual Proeprty GmbH
    Inventors: Achim Feldermann, Eckhard Wenz, Andreas Seidel, Evgueni Avtomonov
  • Patent number: 8461259
    Abstract: The invention relates to a binder for producing materials based on wood chips and/or wood fibers. The aim of the invention is to design a binder which is used for producing and gluing materials based on wood chips and/or wood fibers, contains natural protein components, significantly reduces or even eliminates the drawbacks of the prior art, and can be economically produced and used. Said aim is achieved by a binder which is used for materials based on wood chips and/or wood fibers, comprises an aldehyde-based condensation resin and other additives, and is characterized in that the binder comprises a water-soluble reactive additive containing a peptide/amino acid mixture without moieties of water-insoluble and high-viscosity proteins. The invention also relates to a method for producing said binder as well as a molded article.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: June 11, 2013
    Assignee: Dynea Oy
    Inventors: Hendrikus W. G. van Herwijnen, Wolfgang Heep, Detlef Krug, Andreas Weber, Axel Höhling, Maria Schultze
  • Patent number: 8450426
    Abstract: The present invention relates to a polyethylene composition comprising a polyethylene base resin, which comprises a. an ethylene copolymer as fraction (A), and b. an ethylene homo- or copolymer as fraction (B), with fraction (A) having a lower molecular weight than fraction (B), wherein the polyethylene base resin is obtainable in a polymerisation process in which a single-site catalyst. (SSC) is used in the polymerisation of at least one of fractions (A) and (B), and the base resin has (i) a density of below 940 kg/m3, and (ii) a MFR2 at 190 ° C./2.16 kg of 0.001 to 10 g/10 min, and the composition has (iii) a flexural modulus of from 300 to 820 MPa, and to a process for the production of such a composition, and to a pipe produced from such a composition.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: May 28, 2013
    Assignee: Borealis Technology Oy
    Inventors: Magnus Palmlöf, Solveig Johansson, Per-Ola Hagstrand, Sune Olsson
  • Patent number: 8425680
    Abstract: In one embodiment, the present invention includes a method for preparing a hydraulic composition including sand in which clay is present, the method including adding to the sand and clay a cationic polymer having a density of cationic charges which is greater than 0.5 meq/g and an intrinsic viscosity which is less than 1 dl/g, said cationic polymer being present in an amount of from 2-20% by weight based on the amount of clay present, said clay present in an amount of from 0.5-5% by weight of the sand present, and water.
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: April 23, 2013
    Assignee: LaFarge
    Inventors: Alain Jacquet, Emmanuel Villard, Olivier Watt
  • Patent number: 8410219
    Abstract: Provided is a method for increasing the melt flow of a composition comprising a mixture of high molecular weight carboxylate functionalized ethylene copolymers (Mw between 80,000 and 500,000 Da) with low molecular weight carboxylate functionalized ethylene copolymers (Mw between 2,000 and 30,000 Da), wherein the carboxylic acid groups are at least partially neutralized to form salts containing zinc cations. The method comprises melt mixing the composition with ionomers containing cations other than zinc. Also disclosed are trimodal compositions comprising high molecular weight terpolymers, high molecular weight dipolymers and low molecular weight dipolymers wherein the carboxylic acid groups are at least partially neutralized to salts containing zinc cations and non-zinc cations. The compositions are used in films, multilayer structures and other articles of manufacture.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: April 2, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventor: John Chu Chen
  • Patent number: 8394896
    Abstract: The present invention relates to a liquid ?-olefin vinyl acetate compound containing a liquid ?-olefin vinyl acetate copolymer. Compositions according to the present invention have improved resistance to premature vulcanization as well as good physical properties and aging resistance. The present invention is also directed to a vulcanized compound containing a liquid ethylene vinyl acetate copolymer.
    Type: Grant
    Filed: December 6, 2004
    Date of Patent: March 12, 2013
    Assignee: Lanxess Inc.
    Inventors: Richard Pazur, Lorenzo Ferrari
  • Patent number: 8377186
    Abstract: A temporary aqueous aerosol paint composition comprising an aqueous paint component, including an aqueous solvent, and an aqueous propellant component. At least one embodiment of the composition includes an amount of water as the aqueous solvent. The composition is formulated to minimize and/or eliminate the hazards presented by various volatile and non-volatile organic compounds present in known aerosol paint compositions, by eliminating or minimizing inclusion of such organic compounds. Further, the composition is developed to facilitate enhanced degradation in a short period of time, while also including elements to increase the performance when in use. A variety of pigment compounds may be used in the composition, permitting a variety of applications. The present invention is also directed to a method for preparing the temporary aqueous aerosol paint composition. This method includes adding the compounds to a reaction vessel and mixing thoroughly via a plurality of addition steps and mixing cycles.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: February 19, 2013
    Assignee: EZ Paint, Inc.
    Inventors: Arthur Coello, Carlos Vega Velazquez
  • Patent number: 8372911
    Abstract: The invention provides a golf ball material which is a resin mixture composed of (a) a nonionic olefin-unsaturated carboxylic acid copolymer and/or olefin-unsaturated carboxylic acid-unsaturated carboxylic acid ester copolymer, (b) a nonionic olefin-unsaturated carboxylic acid copolymer and/or olefin-unsaturated carboxylic acid-unsaturated carboxylic acid ester copolymer, (c) an organic acid or a metal salt thereof, (d) a basic inorganic metal compound for neutralizing at least 70 mol % of acid groups in components (a) to (c), and (e) a spherical inorganic filler, which resin mixture has a Shore D hardness of from 40 to 60. The golf ball material of the invention provides an excellent rebound resilience and durability while maintaining the flow properties essential for injection molding.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: February 12, 2013
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Kae Iizuka, Eiji Takehana
  • Patent number: 8372517
    Abstract: An acrylic thermoplastic resin composition is obtained by melt-kneading a methacrylic resin (A) and a polyvinyl acetal resin (B) at a resin temperature of not less than 140° C. while applying shear at a shear rate of 100 sec?1 or more, and then cooling the kneaded product to not more than 120° C. In the acrylic thermoplastic resin composition, at least the methacrylic resin (A) forms a continuous phase, and among glass transition temperatures of the acrylic thermoplastic resin composition, a glass transition temperature TgA P ascribed to the methacrylic resin (A) indicates a value between a glass transition temperature (TgA) of the methacrylic resin (A) alone and a glass transition temperature (TgB) of the polyvinyl acetal resin (B) alone. A film- or sheet-like molded article is obtained by molding the resin composition. An acrylic resin composite is obtained by laying a layer of metal and/or metal oxide on at least one side of the acrylic resin molded article.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: February 12, 2013
    Assignee: Kuraray Co., Ltd.
    Inventors: Kazuki Tokuchi, Nobuhiro Moriguchi, Yohei Kamata, Yukiatsu Komiya
  • Patent number: 8361220
    Abstract: A strength improvement admixture composition is provided that increases the compressive strength of cementitious compositions without negatively increasing the setting time. The admixture comprises the components of a polycarboxylate dispersant, a set retarder, and a strength improvement additive.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: January 29, 2013
    Assignee: Construction Research & Technology GmbH
    Inventors: Jeffrey R. Bury, Thomas M. Vickers, Jr., Bruce J. Christensen
  • Patent number: 8362168
    Abstract: The present invention provides an aqueous fluoropolymer dispersion having good mechanical characteristics and storage stability and containing substantially no fluorinated surfactant. The present invention is related to an aqueous fluoropolymer dispersion comprising a dispersed fluoropolymer particle with an average primary particle diameter of 50 to 400 nm, a surface layer of the dispersed fluoropolymer particle being obtained by emulsion polymerization of a monomer composition consisting of 99.999 to 98 mole percent of tetrafluoroethylene and 0.001 to 2 mole percent of a modifier monomer, a fluorinated surfactant content being not higher than 50 ppm, a fluoropolymer content being 20 to 75% by mass, and a nonfluorinated nonionic surfactant content being 2 to 15% by mass relative to 100% by mass of the fluoropolymer.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: January 29, 2013
    Assignee: Daikin Industries, Ltd.
    Inventors: Chie Sawauchi, Nobuhiko Tsuda
  • Patent number: 8354475
    Abstract: An organic solvent free process to make an aqueous co-dispersion of epoxy resins and at least phenolic novolac resins is reported. The compositions of such co-dispersions are based on blends of epoxy resins and at least a phenolic novolac resin within the profile viscosity versus temperature in the ranges from 1 500 000 to 300 mPas at 80° C. and 10 000 to 20 mPas at 120° C.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: January 15, 2013
    Assignee: Momentive Specialty Chemicals Inc.
    Inventors: Helga De Velder, Alain Leroy
  • Patent number: 8349933
    Abstract: A flame retardant composition and method for making flame retardant articles. The flame retardant composition can include a silicone polyetherimide, an fibrillated polytetrafluoroethylene, and a zinc borate. The silicone polyetherimide can be present in an amount of from about 99.6 to about 80.0 percent by weight. The silicone polyetherimide can have from about 5 to about 50 percent by weight dimethyl siloxane units, and less than about 100 ppm amine end groups. The fibrillated polytetrafluoroethylene can be present in an amount of from more than about 1.25 to about 5.0 percent by weight. The fibrillated polytetrafluoroethylene can be encapsulated in a polystyrene, a poly(styrene acrylonitrile), a poly(methyl methacrylate), a polycarbonate, a polyetherimide, a polysulfone, and combinations thereof. The zinc borate can be present in an amount of more than 0 to about 10 percent by weight.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: January 8, 2013
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Yashpal J. Bhandari, Robert Russell Gallucci
  • Patent number: 8349964
    Abstract: The present invention provides a polymer/metal nano-composite. The nano-composite includes at least one copolymer chain having alkenyl monomer units and maleimide monomer units, and a nano-sized metal or inorganic crystal. It also provides a method of producing nano-sized metal/inorganic crystals in pure form. These nano-composites and nano-crystals can be useful as polymer fillers, tire rubber compounds, semiconductors, nano-magnets, catalysts, and quantum dots etc.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: January 8, 2013
    Assignee: Bridgestone Corporation
    Inventors: Xiaorong Wang, Victor J. Foltz, Pat Sadhukhan, Georg C. A. Böhm